Car truck



Jan. 9, 1945.

W. H. BASELT AL CAR TRUCK Filed May 22, 1942 2 Sheets-Sheet 2 INVENTORS Patented Jan. 9, 1945 UNITED STAT accessi CAR TRUCK walter n. nasen, 'rue Flesch, Chicago, Ill.,

son, Ariz., and John E. assignors to American Steel Foundries, Chicago. mi., a corporation of New .iersey `Application May 22, 1942, Serial No. 444,040

2l Claims.

Our invention relates to a four wheel railway car truck and more particularly to a spring.

v is composed of three principal members, a pair of spaced truss'type side frames and a bolster resiliently supported on said frames and engaged therewith. the usual spring plates and interlocking member or members being eliminated.

An object of our invention is to devise a railway car truck such as above described in which each end of the bolster is provided with integral wing portions, said wing portions being received between tapered inboard and outboard webs of respective columns on the associated frames whereby the bolster and the side frames are maintained in assembled relationship.

A further object of our invention is to design a novel spring support for the bolster, said support comprising a plurality of spaced coil springs, all of said springs being of equal height and be ing supported from the same level, and certain of said springs being partially housed within the associated columns and affording a support for the before-mentioned wing portions of the bolster.

Still another object of our invention is a four wheel truck comprising the features above described and also being arranged to facilitate a quick wheel change during which the bolster may be elevated in the associated bolster openings of the side 'frames and may be removed therefrom while the supporting spring groups remain in normal assembled relationship. This object is accomplished by relieving or terminating the inboard web of each column at a convenient distance from the top or compression memtween each bolster end and thesupporting spring group, said shim means being confined between shim retaining lugs on the outboard edge of the bolster end and a shoulder formed on the bottom wall of the bolster.

In the drawings, Figure 1 is a fragmentary side elevation of a railway car truck embodying our invention, only one end of the truck being shown inasmuch as it is similar at opposite ends thereof.

Figures 2 and 3 are respectively top plan and bottom plan' views 'of the structure shown in Figure 1. l

Figure i is a sectional view in the transverse vertical plane indicated by the line 4--4 of Figure 2.

Figure 5 is a fragmentary top plan view of Ithe bolster shown in Figures 1 to 4 inclusive and Figure 6 is a somewhat diagrammatic view showing the novel method of shimming the end of the bolster.

Figure 7 is a fragmentary top plan view of a railway car truck embodying a modification of our invention.

Describing our invention in detail and referring first to the modification shown in Figures 1 to 6 inclusive, the truck side frame comprises a tension member 2, a compression member 4 and a column 6 defining therewith a window 8 and a bolster opening Hl. The tension member is of box section beneath the bolster opening and comprises the top chord I2, the bottom chord I4, and inboard and outboard side walls i6 and I8 reinforced respectively by the vertical webs and 22. The top chord is widened beneath the bolster opening to form a spring.r seat 24 defined by the inboard and outboard walls 26 and 28, said walls being beaded respectively as at 30 and 32.

ber of the frame whereby the wing portions ofv the bolster may clear the side frame during removal of the bolster from the top of the bolster opening.

Our arrangement comprises a novel reinforcing web formed at the juncture of the inboard edge of each column with the tension member, said web extending into thek adjacent window opening and serving to reinforce the upper portion of the column and to decrease stresses thereon as a result of the termination of the inboard web of said column at a point spaced from the tension member for the purpose above described.V

Still another object of our invention is to provide shim means of novel form for insertion be- Formed on the spring seat 24 are the spaced spring positioning lugs 34, 34,- said lugs affording positioning means for the coil springs 36, 36, diagrammatically indicated. said springs affording a support for a bolster generally designated y:i8 and hereinafter more fully described.

Each column 6 is somewhat U-shaped for a major portion of its length and comprises the inboard and outboard webs wand 42, said webs being tapered as best seen in Figure 2 and being flanged as at 44 and 46 respectively to afford abutment means for the adjacent side of the bolster 38. Extending between the inboard and outboard webs 40 and 42 is a transverse web 48, said web being arcuately formed as best seen in Figure 2 in order that the surface thereof adjacent the bolster opening I0 forms an. arcuate guide for the associated wing portion ofthe bolster 38 as hereinafter more fully described. From a comparison of Figures 1 and 2 it will be .form a pocket apparent that the end coil springs 38, 36 are partially housed within the associated columns so that they may support the wing portions o! the bolster, said wing portions also being received' between the inboard and outboard webs of re. spective of said columns. The inboard web oi' each column is terminated short of the compression member as may be clearly seen in Figures 1 and 4 whereby the associated end portion of the bolster may be removed from the bolster opening during a quick wheel change, the wing portions of the bolster being ailorded clearance from the side frame by means o1' the aforementioned termination of the inboard webs of the columns.

The bolster 38 comprises a top wall 64, a bottom wall 56, side walls 58, 58 and the intermediate transverse wall 60. The bottom wall 56 defines a shoulder 62 at the juncture oi the body portion of the bolster with the end portion generally designated 66, said end portion being seated at 68 upon the coil springs 36, 36. It will be noted from a consideration of Figures 4 and 5 that the shoulder 62 is tapered at opposite sides thereof as at 69 for a purpose hereinafter more fully described. At each side thereof the bolster is formed with an integral wing portion 'l0 ta- Dered at opposite sides thereof as at '|2, '|2 and arcuately formed at the end thereof as at '|6 whereby said wing portion may be received within the webs of the associated column in complementary engagement therewith and with the transverse wall i8 of said column. It may be noted that the inboard edge of each column is strengthcned by the vertical web 'i6 beaded as at 80, said web serving to decrease stresses on the column resulting from the beforernentioned termination of the inboard web 90.

Figure 6 shows in reduced form the shim arrangement utilized in our novel truck, said arrangement comprising a pair of round shims 82 and dii and an intermediate shim 86, somewhat rectangular in form and comprising beveled corners 35 and 96 adapted to seat against the tapered portions 69, 69 of the shoulder 62 on the bottom wall 56 of the bolster end and the shim 86 also comprises at the outboard end thereof the beveled corners 92 and 94 adapted to engage the depending shim retaining lugs 96, 96 on the outboard end of the bolster, said lugs 96, 96 also affording retaining and positioning means for the upper ends of the springs 36, 36. It will be understood from a consideration of Figures 1, 2 and 4 that the lugs 96, 96 and the tapered shoulder 62 on the bolster obviate the necessity for a top spring plate, while the spring positioning lugs 34, 34 on the spring seat 24 obviate the necessityv for a bottom spring plate, thus permitting the direct seating of the springs 36, 36 against the side frame and bolster. It will be apparent that the shims 82, 84 and 86 will be retained in position over respective of the springs 36, 36 by engagement with the lugs 96, 96 on the end of the bolster and with the shoulder 62 as well as by the abutment of said shims with each other.

It may be noted that a brake hanger bracket 98 is fragmentarily shown on the inboard face of the column 6, said bracket affording support means for an associated brake hanger as will be clearly apparent to those skilled in the art.

' Figure 7 shows a modiiication of my invention in which the frame, generally designated |00, is

.each of said similar to that previously described except that I said frame comprises a column |02 widened to |04 wider than the top or tension `and comprising s member |06 of the trame, said pocket affording increased bearing area for the wing portion |08 of the bolster generally designated I I0 and supported by the springs H2 as in the previous modication, said bolster being similarly arranged to the bolster 38 described for the previous modication except that the wing portions |06, |08 are relatively wide in order to aillord an increased bearing area against the column |02 previously described. It will be apparent that in the modication shown in Figure '7 the truck is identical with that disclosed in the previous figures except for the widened columns and the widened wing portion of the bolster.

Thus it will be apparent that we have designed a novel four wheel railway car truck composed of a pair of spaced truss type side frames and an intervening bolster comprising integral wing portions received between the inboard and outboard webs of respective columns of said frames and thereby interlocking said frames with said bolster, said bolster being seated directly upon a plurality of coil springs supported from the side frames, certain of said springs being housed within the columns and affording support for the wing portions of the bolster end, all of said springs being of equal length and being supported from the same level.

It is to be understood that we do not wish to be limited by the exact embodiments of the device shown which are merely by way of illustration and not limitation as various and other forms of the device will, of course, be apparent to those Skilled in the art Without departing from the spirit of the invention or the scope of the claims.

We claim:

1. In a railway car truck, a side frame having tension and compression members and spaced columns dening therewith a .bolster opening, each column having inboard and outboard walls and a transverse web, a coil spring group seated directly on said tension member in said opening two pairs of springs, one pair of said springs being in alignment longitudinally of the frame and the other pair of said springs being in alignment transversely of the frame, longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent co1- umn, spring positioning means on said tension member for said springs, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said x STOUD.

said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder on the bottom wall of said bolster, said shoulder being tapered at opposite sides thereof to deiine a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs.

2. In a railway car truck, a side frame having tension and compression members and spaced columns dening therewith a bolster opening, each column having inboard and outboard walls and a transverse web, a coil spring group seated directly on said tension member in said opening and comprising two pairs of springs, one pair of said springs being in alignment longitudinally of the frame and the other pair of said springs being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, a

spring positioning lug on said tension member between eachspring of one pair and each adiacent spring of the other pair, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being dened at its inboard edge by a shoulder on the bottom wall of said bolster, said shoulder being tapered at opposite sides thereof to define a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs.

3. In a railway car truck, a side frame having tension and compression members and spaced columns defining therewith a bolster opening, each column having inboard and outboard walls and a transverseweb, a coil spring group seated directly on said tension member in said opening and comprising two pairs of springs, one pair of said springs being in alignment longitudinally of the frame, and the other pair of said springs being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length vbetween the inboard and outboard walls of the adjacent column, a spring positioning lug on said tension member between each spring of one pair and each adjacent spring of the other pair, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on e respective of said longitudinally aligned springs,

and said end portion being defined at its inboard edge by a shoulder on the bottom' wall of said bolster, said shoulder being tapered at opposite sides thereof to define a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs, the inboard wall of each column being terminated short of said compression member at a distance greater than the depth of the associated wing member whereby said bolster end may be removed from the top of said bolster opening `while said spring group remains in normal assembled relationship with the side frame.

4. In a railway car truck, a side frame having tension and compression members and spaced columns defining therewith a bolster opening, each column having inboard and outboard walls and a transverse web, a coil spring group seated directly on said tension member in said opening and comprising two pairs of springs, one pair of said springs being in alignment longitudinally of the frame, and the other pair of said springs being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning means on said tension member for said springs, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members' received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder on the bottom wall of said bolster, said shoulder being tapered at opposite sides thereof to define a 'pocket receiving: the upper end of one oi' said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs, the inboard wall of each column being terminated short of said compression mem-ber at a distance greater than the depth of the associated wingv member whereby said bolster end may be removed from the top of said bolster opening while said spring group remains in normal assembled relationship with the side frame.

5. In a railway car truck, a side frame having tension and compression members and spaced columns defining therewith a bolster opening. each column having inboard and outboard walls and a transverse web, a spring group seated on said tension member in said opening and comy prising two pairs of springs, one pair being in alignment longitudinally oi' the frame and the other pair being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed between the inboard and outboard walls of the adjacent column, spring positioning lugs on said tension member between adjacent springs, and a bolster comprising a body portion and an end portion received `within said opening and seated on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being 40 defined at its inboard edge by a shoulder on the bottom wall of said bolster, said shoulder tapering inboardly at opposite sides of one of said transversely alined springs, and spaced depending lugs at the outboard edge of said end portion at opposite sides of the other of said transversely aligned springs, each of said longitudinally aligned springs being confined at its upper end between the inboard edge of the adjacent, lug and the adjacent outboard extremity of said shoulder.

6. In a railway car truck, a side frame having tension and compression members and spaced columns defining therewith a bolster opening, each column having inboard and outboard walls and a transverse web, a coil spring group seated directly on said tension member in said opening and comprising two pairs of springs, one pair of said springs being in alignment longitudinally of the frame and the other pair of said springs being in augment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, a spring positioning lug on said tension member between each spring of one pair and each adjacent spring of the other pair, and a bolster comprising a body portion and an end portion received within-said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder on the bottom wall of said bolster, said shoulder being tapered at opposite sides thereof to define a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portionv i'or positioning the other of said transversely aligned springs. each of said longitudinally aligned springs being confined at its upper end between the adjacent portion of saidshoulder and the adjacent of said last-mentioned lugs.

'7. In a railway car truck, a side frame having tension and compression members and spaced columns defining therewith a bolster opening,

alignment transversely of the frame, each of said longitudinally aligned springs being Partially housed for its entire length between the inboard and 'outboard walls of the adjacent column, spring positioning means on said frame for said springs, and a bolster comprising a body portion and an end portion received within said opening and seated on said springs, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder on'the bottom wall of the bolster, said'shoulder being tapered at oppositesides .thereof to define a pocket receiving the upper end of one oi said *transversely aligned springs, and a plurality of umn, spring positioning means on said tension member for said springs, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard walls oi' respective columns and seated on respective of said longitudinally aligned springs, and said end portion being dened at its inboard edge by a shoulder on the bottom wall of said bolster, said shoulder being tapered at opposite sides thereof to deiine a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs, each of s aid longitudinally aligned springs being confined at its upper end between the adjacent portion of said shoulder and the adjacent of said'last-mentioned lugs.

8. In a railway car truck, a side frame lcomprising spaced columns and an intervening bolster opening, each column comprising inboard and outboard walls,'resilient means seated on said frame in said opening and comprising two pairs of springs, one pair being in alignment longitudinally of the frame and the other pair being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning meanson said frame for said springs, and a bolster comprising a body portion and an end portion received within said opening and seated on said springs, said end portion comprising wing members received between the inboard and outboard walls of respective columns and'seated on respective of said longitudinally aligned springs, and said end portionA being defined at its inboard edge Aby a shoulder on the bottom wall of the bolster, said shoulder being tapered at opposite sides thereof to define a pocket receiving the upper end of one of said transversely aligned-springs, and a plurality of spaced .depending lugs at the outboard edge of said end portion for positioning the other of said trans'- versely aligned springs.

9. In a railway car truck, a side frame comprising spaced columns and an intervening bolster opening, each column comprising inboard and outboard walls, resilient means seated on said frame in said opening and comprising two pairs of springs, one pair being in alignment longitudinally of the frame and the other pair being in spaced depending lugs at the 'outboard edge of said end portion for positioning the other of said transversely aligned springs. each of said longitudinally aligned springs being coniined at its upper end between the adjacent outboard extremitir of said shoulder and the ,inboard extremity of the adjacent of said lugs.

10. In a railway car truck, a side frame comprising spaced columns and an intervening bolster opening, each column comprising inboard and outboard walls, resilient means seated on -said frame in said opening and comprising two pairs of springs, one pair being in alignment longitudinally of the frame and the other pair being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning means on said frame for said springs, and a bolster comprising a body portion and an end portion received within said opening and seated on said springs, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of lsaid longitudinally aligned springs, and said Vend portion being defined at its inboard edge by a shoulder on .the bottom wall of the bolster, said shoulder being tapered at opposite sides thereof to denne a pocket receiving the upper end of one of said ltransversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other vof said transversely aligned springs, the inboard wall of each column being terminated short of said compression member at a distance greater than the depth of the associated wing member whereby said bolster end may be removed from the top of said bolster opening while said springs remain in normal assembled relationship with the side frame.

i 11. In a railway car truck, a side frame comprising top and bottom members and spaced columns defining therewith-a bolster opening,`

each column comprising inboard and outboard walls and a transverse web, a coil spring group seated directlyon said bottom member in said f opening and comprising two pairs of springs, one

pair being in alignment longitudinally of the frame and the other pair being in alignment transversely of the'frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning means on said bottom member for the respective springs of said group, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder offset inboardly intermediate the sides of said bolster to define a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spacing depending lugs at the outboard edge of said end portion for posltlonin-g the other of said transversely aligned springs.

12. In a railway car truck, a side frame comprising top and bottom members and spaced columns defining therewith a bolster opening, each column comprising inboard and outboard wallsand a transverse web, a coil spring group seated directly on said bottom member in said opening and comprising two pairs of springs, one pair being in alignment longitudinally of the frame and the other pair being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning means on said bottom member for the respective springs of said group, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder offset inboardly intermediate the sides of said bolster to define a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs, the inboard wall of each column being terminated short of said top member at a distance greater than the depth of the associated wing member whereby said bolster end may be removed from the top of said bolster opening while said spring group remains in normal assembled relationship with the side frame.

13. In a. railway car truck, a side frame comprising tension and compression members and spaced columns defining therewith a bolster opening, each column comprising a vertical guideway defined by spaced inboard and outboard walls, a spring group seated directly on said tension member in said opening, said group comprising a pair of springs aligned longitudinally of the frame, and a pair of springs aligned transversely thereof, each of said longitudinally aligned springs being partially housed between the spaced walls of the adjacent column, and a bolster comprising an end portion seated onsaid group and having wing portions received within said guideways and each seated on-one of said longitudinally aligned springs, a shoulder depending from the inboard edge of said bolster end and tapered inboardly at opposite sides thereof to define a pocket receiving the upper end of the inboard of said transversely aligned springs, and a plurality of depending lugs onthe outboard edge of said bolster end for positioning the outboard of said transversely aligned springs, each of said longitudinally aligned springs being restrained at its upper end against inboard or outboard movement by the inboard edge of the adjacent lug and the adjacent outboard extremity of said shoulder.

i4. In a railway car truck, a side frame comprising tension and compression members and spaced columns defining therewith abolster openlng, each column comprising a vertical guideway dened by spaced inboard and outboard walls, a spring group seated directly on said tension member in said opening, said group comprising a pair of springs aligned longitudinally of the frame and a pair of springs aligned transversely thereof, cach of said longitudinally aligned springs being partially housed between the spaced walls of the adjacent column, and a bolster comprising an end portion seated on said group and having wing portions received within said guideways and seated on said longitudinally aligned springs, :a shoulder depending from the inboard edge of said bolster end, said shoulder being offset inboardly to denne a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of depending lugs on the outboard edge of said bolster end and converging toward the longitudinal center line thereof for positioning the other of said transversely aligned springs, the outboard end of said shoulder at each side of the bolster and the inboard extremity of the adjacent lug presenting opposed abutment surfaces at the juncture of the associated wing portion with said end portion for cooperation with one of said longitudinally aligned springs.

15. In a. railway car truck, a side frame comprising tension and compression members and spaced columns defining therewith a bolster opening, each column comprising a vertical guideway defined by spaced inboard and outboard walls, a spring group seated directly on said tension member in said opening, said group comprising a pair of springs aligned longitudinally of the frame, and a pair of springs aligned transversely thereof, e'ach of said longitudinally aligned springs being partially housed between the spaced walls of the adjacent column, and a bolster comprising an end portion seated on said group and having wing portions received Within said guideways and seated on said longitudinally aligned springs, a shoulder depending from the inboard edge of said bolster and tapering toward the longitudinal center line thereof to define a pocket receiving the upper end of one of said transversely aligned springs, and depending lugs formed on the outboard edge of the bolster end and converging toward said center line for restraining the other of said transversely aligned springs against movement longitudinally or outboardly of the frame, the outboard end of said shoulder at each side of the bolster and the inboard extremity of the adjacent lug presenting opposed abutment surfaces at the juncture of the associated wing portion with said end portion for cooperation. with one of said longitudinally aligned springs to limit inboard and outboard movement thereof.

16. In a railway car truck, a side frame comprising tension and compression members and spaced columns defining therewith a bolster opening, each column having a vertical guideway defined by spaced inboard and outboard walls, a spring group supported on said tension member in said opening, said group comprising a pair of springs aligned longitudinally of the frame and a. pair of springs aligned transversely thereof, each of said longitudinally aligned springs being partially housed between the spaced walls of the adjacent column, and a bolster comprising an end portion supported on said group and having wing portions received within said guideways and springs, and a, depending abutment surface'on said end portion opposed to an abutmentsurface on the outboard extremity of said shoulder at each side of the bolster, said abutment surfaces being formed and arranged for guiding cooperation with said longitudinally aligned springs.

1'7. In a railway car truck, a side frame comprising topand bottom members and spaced columns defining therewith a bolster opening, each column comprising inboard and outboard walls and a transverse web, a coil spring group seated directly on said bottom member in said opening and comprising two pairs oi springs, one pair being in alignment longitudinally of the frame and the other pair being in alignment transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning'means on said bottom member for the respective springs of said group, and a bolster comprising a body portion and an end portion received within said opening and seated directly on said group, said end portion comprising wing members received between the inboard and outboard Walls of respective columns and seated on respective of said longitudinally aligned springs,

and said end portion being defined at its inboard edge by a shoulder offset inboardly intermediate the sides of said bolster to define a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs, each of said longitudinally aligned springs being conned at its upper end between the adjacent outboard extremity of said shoulder and the inboard extremity of the adjacent lug.

18. In a railway car truck, a side frame having tension and compression members' and spaced columns defining therewith a bolster opening, each column having inboard and outboard walls and a transverse web, said web having a width greater than that of said tension member and presenting an arcuate bolster guide surface, a coil spring group seated on said tension member in said opening and comprising two pairs of springs, one pair being in alignment longitudinally of the frame and the other pair being in alignment transversely of the frame, each of said longitudinally aligned springs being housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning means on said-tension member for said springs, and a bolster comprising an end portion received with- A in said opening and seated on said group, said end portion comprising wing members received between the inboard and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, each of said wing members presenting an arcuate surface for complementary engagement with the adjacent of said first-mentioned surfaces and said end portion being defined at its inboard edge by a shoulder on the bottom'wall of said bolster, said shoulder being tapered at opposite sides thereof to dene a pocket receiving the upper end of one of said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edge of said end portion for positioning the other of said transversely aligned springs. 19. In a railway car truck, a side frame having tension and compressionvmembers and spaced member in `said opening and comprising two pairs of springs, one pair being in alignment longitudinally of the frame and the other pair being in alignment' transversely of the frame, each of said longitudinally aligned springs being partially housed for its entire length between the inboard and outboard walls of the adjacent column, spring positioning means on said tension member for said springs, and a bolster comprising an end portion received within said opening and seated directly on said group, said end portionl comprising wing membersreceived between the inboardA and outboard walls of respective columns and seated on respective of said longitudinally aligned springs, and said end portion being defined at its inboard edge by a shoulder on the bottom wall of said bolster. said shoulder being tapered at opposite sides thereof lto dene a pocket receiving the upper end of oneof said transversely aligned springs, and a plurality of spaced depending lugs at the outboard edgeof said end portion for positioning the other 'of said transversely aligned springs, the inboard wallof each column being terminated short of said compression member at a distance greater than the depth of the associated wing member, and a vertical web in each window merging with said compression member and the inboard edge of the transverse web ci the adjacent column.

20. In a bolster, 'a body portion and anv end portion comprising wing members at opposite sides thereof, said end portion and wing members presenting a plane spring seat surface on the bottom of said bolster, a shoulder on the bottom wall of said bolster defining the inboard extremity of -posed at the juncture of the associated wing member with said end portion.

21. In a bolster, a body portion and an end portion comprising wing members at opposite sides thereof, said end portion and wing members presenting a spring seat surface on the bottom of said bolster, a shoulder on the bottom wall of said bolster defining the inboard extremity of said surface, said shoulder being inboardly offset intermediate the sides of said bolster to define a spring seat pocket, and a plurality of spring positioning lugs at the outboard extremity of said surface, the outboard extremity of said shoulder at each side of the bolster and the inboard extremity of the adjacent lug presenting opposed spring abutment surfaces at the junctureof the associated wing member with said body portion.

WALTER H. BASELT. JOHN E. FLESCH. 

